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            <h1 class="article-title">可再造型、自修复的多功能石墨烯复合材料</h1>
            <div class="article-meta">2018年09月10日</div>
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                <p>石墨烯是一种具有优异力学、电学、热学和光学性能的二维碳材料。石墨烯的高效制备及宏观组装对其规模应用具有重要意义。目前，石墨烯宏观组装体的常规制备方法需要严格的反应条件，且一旦成形后，不可再被重塑或回收。因此，在需要复杂形状石墨烯结构与器件的应用场合，可任意塑性的石墨烯宏观体尤为重要。</p>
                <p><a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.201803004" target="_blank" rel="noopener">为解决上述问题，清华大学材料学院朱宏伟教授团队将具有丰富官能团的氧化石墨烯加入仿生矿化凝胶体系，形成氧化石墨烯、无定形碳酸钙纳米粒子、聚丙烯酸交联网络结构（图1）。</a>提出了一种室温下快速合成多功能石墨烯宏观组装体的方法。通过调节水分含量调控石墨烯组装体的软硬状态，实现反复造型功能及可回收性，有望用于石墨烯材料的多维多尺度快速加工与成形。</p>
                <p><a href="http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei.png" data-slb-active="1" data-slb-asset="927147205" data-slb-internal="0" data-slb-group="30227"><img class="aligncenter wp-image-30231" src="http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei.png" alt="" width="400" height="156" srcset="http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei.png 877w, http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei-300x117.png 300w, http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei-768x299.png 768w" sizes="(max-width: 400px) 100vw, 400px"></a></p>
                <p>该复合材料在湿润状态下具有柔性、延展性及可拉伸性，可实现复杂造型。在干燥条件下保持原有造型，具有高强度、韧性及硬度。通过水分控制实现了两种状态的可逆转变。此外，该复合材料具有极佳的重塑性和自愈合能力，可进一步修饰或加工以满足各种特定的应用需求（如能源储存、促动器、传感器）。该方法具有简便、高效、低成本等特点，可推广至其它材料的灵活组装。</p>
                <p><a href="http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei1.png" data-slb-active="1" data-slb-asset="217188111" data-slb-internal="0" data-slb-group="30227"><img class="aligncenter wp-image-30230" src="http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei1.png" alt="" width="400" height="525" srcset="http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei1.png 726w, http://www.materialsviewschina.com/wp-content/uploads/2018/09/AM-zhuhongwei1-229x300.png 229w" sizes="(max-width: 400px) 100vw, 400px"></a></p>
                <p>近年来，朱宏伟教授研究团队专注于低维材料的可控制备、性能表征及应用技术开发，在结构设计、柔性器件、环境/能源等领域取得了多项重要成果。相关工作发表在《化学学会评论》（Chemical Society Reviews）、《先进材料》（Advanced Materials）、《纳米快报》（Nano Letters）、《科学进展》（Science Advances）等期刊上。</p>
                <p>本文第一作者为清华大学材料学院博士生林舒媛，通讯作者为朱宏伟教授和日本东京工业大学芹泽武教授。<a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.201803004" target="_blank" rel="noopener">相关结果发表在Advanced Materials上（DOI: 10.1002/adma.201803004），并被选为当期Inside Front Cover。</a></p>
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